Tool-holder



R. MAMEHS. TOOi HOLDER.

r 1920. 1,371,799. Patented Mar. 15, 1921.

2 SHEETS-SHEET N AE.

- )www Mmmm ATTORN EY R. MAMERS.

TOOL HOLDER. APPLICATION FILED MAY18.1920.

' 1,371,799, Patented Mar. 15, 1921.

2 SHEETS-SHEET?.

Hein/wld Hamers.

INVENTOR UNITE STATES PATENT assise..

REINIIOLD MAMERS, OF BROOKLYN, NEW'TORK.

To all vw fiom t may concern Be it known that I, REiNHoLD I vIkMnRs, a citizen of the United States, residing at Brooklyn, in the county of Kings andy State of New York, have invented new and useful Improvements in Tool-Holders, of which the following is a specification.

This invention relates to a tool. holder for holding cutting tools and the like'and the principal object of the invention is to provide a spring connection between the tool carrying part of the holder and the rest ofthe holder so that the tool may yield slightly under the action of the work piece.

Another object of the invention' is to p rovide means for adjusting the spring action so as to make it more or less to suit .the conditions under which the tool is being used and the work being done. Y

A further object of the invention is to provide means whereby this yielding movement will be practically eliminated when desired.

It is thought from the foregoing description that the advantages and novel features of my invention will be readily apparent. I desire it to be understood that I may make changes in the construction and in the combination and arrangement of the several parts, provided that such changes fall within the scope of the appended claims. f

Figure 1 is a side view of the device;

Fig. 2 is a longitudinal sectional view.

Fig. 3 is a bottom view.

Fig. 4 is an end view.

Figs. 5, 6 and 7 are detail views.

Inv these views 1 indicates the shank of the holder and 2 the head thereof. This head is provided witha spring part 2 which is formed by a circular opening 3 and the slot et made in the head. This slot and opening divide the part 2 from the rest. of the head excepting at the upper portion thereof so that this upper portion will act as a spring to permit a certaininovement of part 2, this movement increasing or decreasing the width of the slot et. In order Specioaton of Letters Patent. Patented Blain 1 Application filed May 18,

TOOL-HOLDER. Y

1920. serial No. 382,391.

i tirely through the hole 8 and has its inner end located in the recess 7 in the main part of the head. The tool is clamped in position bymeans of the clamping bolt 10 which engages with a hole 11 formed in the part 2. This bolt has a transverse opening 12 in its inner endthrough which the cutting toolr passes land they outer end ofthe boltV is screw .threaded to receive the nut 13 which holds the parts lin position. B

may be adjusted transversely in the holder.

There necessary spaced blocks may be used for properly adjusting the tool.

The lower part of the tool is provided with a. channel 14: in which is located a spring strip 15. The front end of this strip is bolted to the bottom of the part 2 while its other end is provided with a screw threaded socket 16 for receiving the adjusting bolt 17, these parts being so arranged 4that by screwing this bolt 17 one way or j l y means of this boltand nut the cutting toolV acting against a work piece7 such Yas that shown at 20, it will be yieldingly held against said work piece by the part 2. The

' yieldability of this part 2 can-be adjusted by moving the strip 15 longitudinally by means of thebolt 17. If it is desired to practically prevent movement of the part 2 a bar or the like may be inserted in the lower end of the slot 4, the wall of which is. provided with a recess 4, and this bar will prevent downwardand inward movement of the bar 2. The spring action may i also be adjusted by the use of spring sleeves, such asv that shown at' 5, of varying dimensions. i

My invention provides lots-ofroom `for the cutter and it can be used'for heavy and light work by controlling the spring action. The opening S is 'of oblong shape as shown and of course may be made of various sizes to iit the different sizes of tools or to receive several tools at the'same time.

The recess 7 is made of sufficient size as to permit the Vend of the tool to move freely holder.

therein Vunder the spring action of the This recess 7 also permit-s a long cutter or tool to be carried by Jehe holder.

It is thought from the foregoing deseription that lthe advantages and novel features of my invention will be readily apparent.

I desire it 'to be understood that I may make changes in the construction and in the combination and arrangement of the several parts, provided that such changes fall Within the scope of the appended claims.

' l. i spring Jcool holder comprising a springpart for carrying` the tool and means `for adjusting the yieldahility of Jchis part,

auch means oomlirising a spring strip having one end connected with the spring part and means engaging the other end for adjusting the strip longitudinally.

`2. i3., spring" tool holder of theV dass described comprising` a shank and a head7 said head having an opening therein and a slot,

said openingand slots dividing` the head into `a main'4 part and a spring` pari), means carried by the spring part for supporting the cutting tool, means for controlling the y'ieldaliility of said spring part, such means inoluding a spring plate having one end oomni-)ered with the spring part and means at` the other end for moving said plate 1onlgiiindinally. Y

El. spring .tool holder O the class described comprising a shank and a head, said head having anopeningtherein and a slot, :said opening and slot dividing` the head into a mainpart4 and a spring part, means carried by the spring part for supporting the cutting' tool, means for controlling the yieldabilityoi said spring part, such means including a spring plate having one end conf neeted with the spring part, means at the other end for moving said platelongitudi* nally and a split spring, sleeve located in the openinfr.

In testimony whereof I aiix my signature.

REINHOLD MAMERS. 

